I Will love to see dotNet (C#) incluid in this test.
Asp.Net WebAPI (Synchronous and Asycnhrounous)
Asp.Net MVC (Synchronous and Asycnhrounous)
Asp.Net HTTP Handlers (Synchronous and Asycnhrounous)
Also ServiceStack vs ASP.NET MVC vs NancyFX vs Fubu, Mono vs IIS/windows, default serializer vs JSON.NET vs ServiceStack's, etc. There are tons of variations that could be done.